冷模具钢渗扩氮复合强韧化研究  

Study on Composite Strengthening and Toughening Heat Treatment of Cold Die Steels

作　　者：徐维[1] 王莎莎[1] 徐凡娴 王传雅 

机构地区：[1]大连铁道学院

出　　处：《热加工工艺》1995年第3期3-6,共4页Hot Working Technology

基　　金：国家自然科学基金

摘　　要：研究了渗扩氮等温淬火对Ｃｒ７Ｍｏ３ＶＺＳｉ和Ｃｒ１２ＭｏＶ钢、渗扩氮冷待淬火对６０Ｓｉ２Ｍｎ钢的显微组织分布、显微硬度梯度曲线的影响．结果表明，Ｃｒ７Ｍｏ３Ｖ２Ｓｉ和Ｃｒ１２ＭｏＶ钢制冷模具经渗扩氮等温淬火复合强韧化及６０Ｓｉ２Ｍｎ钢冷模具经修扩氮冷待淬火复合强韧化处理后的使用寿命显著提高。The influence of austempering after prenitriding and nitrogen diffusion for Cr7Mo3V2Si andCr12MoV and the influence of quenching delay after prenitriding and nitrogen diffusion for 60Si2Mn on microstructuredistribution and microhardness gradient curues of these steels have studied. The results show that the service life ofcold dies made of steel Cr7Mo3V2Si and steel Cr12MoV after composite strengthening and toughening heat treatmentAPND and made of steel 60Si2Mn after composite strengthening and toughening heat treatment QDPND is obviouslyincreased.

关 键 词：模具钢 渗扩氮 复合强韧化 显微组织 

分 类 号：TG161.99[金属学及工艺—热处理]